Yokogawa GC1000 Mark II Process Gas Chromatograph - Manual (Page 40)

<3. Analyzer Operation Window>
3-11
IM 11B03G03-03E
l Descriptions
The following table summarizes the descriptions of the display. The display is different depending
on the configuration of the temperature controller used.
Item Available Information
SV* Indicates the temperature controller setpoint.
PV Indicates the value measured by the temperature controller (current temperature).
State/Remark Indicates the state of or comments on the temperature controller.
Programmed
temperature oven *
Indicates the temperature of the inner constant-temperature oven of a dualoven model.
Constant-
temperature oven *
Indicates the temperature of the outer constant-temperature oven of a dualoven model
or the temperature of a single-oven model.
LSV1/2 Indicates the temperature of the sampling valve.
FID1/2 Indicates the temperature of the detector only when the system uses a dualoven
model with a temperature-controlled FID.
FPD Indicates the temperature of the photomultiplier when the system uses a singleoven
model.
*: The upper limit of the temperature setpoint varies depending on the type of explosion protection applied.
3.4 Changing the User Level
There are three user levels in the analyzer. The default is set to user level A which only allows the
user to view and confirm the information in the Analyzer Operation window. To set the system at a
level allowing analyzer operation, change the user level by entering the password.
n Types of User Level
There are three user levels: A, B and C. The following table summarizes the permissible
operations at each user level.
User Level
Access Range
Password Entry
During Level Shift
Analyzer Operation Window Alarm Window
A Permits window viewing only; no
operation is allowed on the analyzer.
Inhibits deletion of any of the
records on alarm history.
Unnecessary
B Permits both window viewing and
changing the operation mode,
measuring state (except cancel
command) and range.
Permits deletion of any of
the records on alarm history.
Necessary
C Permits both window viewing and
setting concerning all kinds of
operation with the analyzer.
Permits deletion of any of
the records on alarm history.
Necessary
4th Edition : Mar. 21, 2012-00